In the US, around 92% of adults aged 20-64 have experienced dental caries, also known as cavities or tooth decay, in at least one of their permanent teeth. To tackle the growing problem of tooth decay, researchers from University College London and the London School of Hygiene & Tropical Medicine, both in the UK, say the World Health Organization's recommendation of a maximum of 10% total daily calories from free sugar should be reduced to 5%, with 3% as a target. Continued at MedicalNewsToday>>